CN102622073B - Power supply unit circuit breaking protective system - Google Patents
Power supply unit circuit breaking protective system Download PDFInfo
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- CN102622073B CN102622073B CN201110028756.3A CN201110028756A CN102622073B CN 102622073 B CN102622073 B CN 102622073B CN 201110028756 A CN201110028756 A CN 201110028756A CN 102622073 B CN102622073 B CN 102622073B
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- power supply
- supply unit
- heat exchange
- current value
- exchange controller
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Abstract
A kind of power supply unit circuit breaking protective system, comprise power supply unit and motherboard, motherboard comprises power-off protection apparatus, first power supply unit and microprocessor, power-off protection apparatus comprises the first connector, heat exchange controller, first electric current inductive reactance and the first electric switch, first connector is electrically connected first group of out-put supply of power supply unit, the first end of the first electric switch connects the respective pins of the first connector through the first electric current inductive reactance, second end of the first electric switch connects the first power supply unit, first control pin of the three-terminal link heat exchange controller of the first electric switch, first and second induction pin of described heat exchange controller is connected to the two ends of the first electric current inductive reactance, its the first monitoring pin connects the second end of the first electric switch, its clock pins and data pin are connected to microprocessor.Described power supply unit circuit breaking protective system causes power supply unit auto-breaking when can prevent a certain group of out-put supply of power supply unit from closing.
Description
Technical field
The present invention relates to a kind of power supply unit circuit breaking protective system.
Background technology
The power supply unit of current computer has multi-group power to export usually, the maximum current value that each group power supply exports all can not exceed load current value, the load current value exported as 12V power supply is 18 amperes, when the maximum current value that a certain group of power supply of described power supply unit exports exceeds its load current value, then auto-breaking is closed by described power supply unit, and then cause computer motherboard power-off to close, if and now computer data does not store and will lose, and cause unnecessary loss.
Summary of the invention
In view of above content, be necessary to provide a kind of power supply unit circuit breaking protective system, so that power supply unit power-off can not be made when single group of power supply of power supply unit exports overrate.
A kind of power supply unit circuit breaking protective system, comprise a power supply unit and a motherboard, described motherboard comprises a power-off protection apparatus, one first power supply unit and a microprocessor, described first power supply unit is for being supplied to the electronic component on described motherboard by the output voltage of described power supply unit, described power-off protection apparatus comprises one first connector, one heat exchange controller, one first electric current inductive reactance and one first electric switch, described first connector is for being electrically connected first group of out-put supply of described power supply unit, the first end of described first electric switch connects the respective pins of described first connector through described first electric current inductive reactance, second end of described first electric switch connects described first power supply unit, first of heat exchange controller described in the three-terminal link of described first electric switch controls pin, first and second induction pin of described heat exchange controller is connected to the two ends of described first electric current inductive reactance, first monitoring pin of described heat exchange controller connects the second end of described first electric switch, the clock pins of described heat exchange controller and data pin are connected to described microprocessor respectively, described microprocessor obtains a current value according to the voltage received from described heat exchange controller and is compared by the pre-set current value of the heat exchange controller of described current value and storage, if described current value is less than described pre-set current value, described microprocessor makes first of described heat exchange controller to control pin and exports a high level signal, described first electric switch conducting, first group of out-put supply of described power supply unit exports to described first power supply unit, if described current value is greater than described pre-set current value and be less than the load current value of described power supply unit, described microprocessor makes first of described heat exchange controller to control pin and exports a low level signal, described first electric switch cut-off, first group of out-put supply of described power supply unit can not export to described first power supply unit.
Compare prior art; described power supply unit circuit breaking protective system is when described power supply unit has many group out-put supplies; described power supply unit auto-breaking can not be caused by described power-off protection apparatus when a certain group of out-put supply of described power supply unit is closed, and make described motherboard power-off cause loss of data.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and better embodiment, the present invention is described in further detail:
Fig. 1 is the circuit diagram of power supply unit circuit breaking protective system better embodiment of the present invention.
Main element symbol description
Power-off protection apparatus 100
First connector 10
Second connector 20
Heat exchange controller U1
Electric current inductive reactance R1, R2
Field effect transistor Q1, Q2
Power supply unit 200
Motherboard 300
First power supply unit 310
Second source unit 320
Microprocessor 330
Display unit 400
Embodiment
Please refer to Fig. 1; the better embodiment of power supply unit circuit breaking protective system of the present invention comprises power supply unit 200 and a motherboard 300; described motherboard 300 comprises power-off protection apparatus 100,1 first power supply unit 310, second source unit 320, microprocessor 330 and a display unit 400; other elements on described motherboard 300 are the element on usual motherboard, do not repeat them here.Described first power supply unit 310 and second source unit 320 are for being supplied to the electronic component (not shown) on described motherboard 300 by the out-put supply of described power supply unit 200.Described power-off protection apparatus 100 comprises the first connector 10, second connector 20, heat exchange controller U1, two electric current inductive reactance R1, R2 and two electric switches (as N channel field-effect pipe Q1, Q2).Described first connector 10 is for being electrically connected first group of out-put supply of a power supply unit 200, as P12VA_IN, for the first group of 12V voltage receiving the output of described power supply unit 200, described second connector 20 is for being electrically connected second group of out-put supply of described power supply unit 200, as P12VB_IN, for the second group of 12V voltage receiving the output of described power supply unit 200.Described microprocessor 330 is for the load current value of many groups out-put supply of the pre-set current value and described power supply unit 200 that store described heat exchange controller U1 therein in storer.Wherein, the pre-set current value of described heat exchange controller U1 is less than the load current value of many groups out-put supply of described power supply unit 200.Such as, the load current value of first and second group 12V voltage of described power supply unit 200 is 18 amperes, and the pre-set current value that therefore can arrange described heat exchange controller U1 is 16 amperes.
The drain electrode of described field effect transistor Q1 connects the respective pins of described first connector 10 through described electric current inductive reactance R1, the source electrode of described field effect transistor Q1 connects the first power supply unit 310 on described motherboard 300, the grid of described field effect transistor Q1 connects the control pin GATE1 of described heat exchange controller U1, induction pin SENSE1_P and SENSE1_N of described heat exchange controller U1 is connected to the two ends of described electric current inductive reactance R1, and the monitoring pin SOURCE1 of described heat exchange controller U1 connects the source electrode of described field effect transistor Q1.The clock pins SCL of described heat exchange controller U1 and data pin SDA is connected to the microprocessor 330 on described motherboard 300 respectively, and described microprocessor 330 connects described display unit 400.The drain electrode of described field effect transistor Q2 connects the respective pins of described second connector 20 through described electric current inductive reactance R2, the source electrode of described field effect transistor Q2 connects the second source unit 320 on described motherboard 300, the grid of described field effect transistor Q2 connects the control pin GATE2 of described heat exchange controller U1, induction pin SENSE2_P and SENSE2_N of described heat exchange controller U1 is connected to the two ends of described electric current inductive reactance R2, and the monitoring pin SOURCE2 of described heat exchange controller U1 connects the source electrode of described field effect transistor Q2.In other embodiments, described electric switch also can be NPN type triode.Described display unit 400 shows for the magnitude of voltage of each the group out-put supply by described power supply unit 200, and the number percent of the current value passed through in each moment and load current value shows, when described number percent is more close to 100%, then described power supply unit 200 is more close to auto-breaking state.
During use, two power output ends of described power supply unit 200 are connected on the first connector 10 on described motherboard 300 and the second connector 20 respectively, open described power supply unit 200 and described motherboard 300, the load current value of first and second group 12V voltage of described power supply unit 200 is 18 amperes, and the pre-set current value arranging described heat exchange controller U1 is 16 amperes.First group of power supply of described power supply unit 200 is carried on described electric current inductive reactance R1 by described first connector 10, induction pin SENSE1_P and SENSE1_N of described heat exchange controller U1 detects the voltage difference at described electric current inductive reactance R1 two ends, and output it to described microprocessor 330, described microprocessor 330 obtains a current value of corresponding described voltage according to the voltage received from described heat exchange controller U1, and the pre-set current value of described current value with the heat exchange controller U1 be stored in described microprocessor 330 internal storage is compared, if now described current value is less than the pre-set current value of described heat exchange controller U1, then described microprocessor 330 exports a signal and exports a high level signal to described heat exchange controller U1 to make the control pin GATE1 of described heat exchange controller U1, described field effect transistor Q1 conducting, first group of out-put supply of described power supply unit 200 exports to described first power supply unit 310, there is provided voltage to the electronic component on described motherboard 300 to make it, current status is now shown by described display unit 400 by described microprocessor 330 simultaneously.If now described current value is greater than the pre-set current value of described heat exchange controller U1 and is less than the load current value of described power supply unit 200, then described microprocessor 330 exports a signal and exports a low level signal to described heat exchange controller U1 to make the control pin GATE1 of described heat exchange controller U1, described field effect transistor Q1 cut-off, first group of out-put supply of described power supply unit 200 can not export to described first power supply unit 310, simultaneously current status is now undertaken showing by described display unit 400 and exports warning marker to remind first group of out-put supply closedown of user's now described power supply unit 200 by described microprocessor 330.Therefore, described power supply unit 200 is when first group of power supply output is greater than the pre-set current value of described heat exchange controller U1 and is less than the load current value of described power supply unit 200, close described first group of power supply by described heat exchange controller U1 to export, prevent described first group of power supply output from exceeding the load current value of described power supply unit 200 with this and cause described power supply unit 200 auto-breaking.
If and now second group of power supply of described power supply unit 200 is carried on described electric current inductive reactance R2 by described second connector 20, induction pin SENSE2_P and SENSE2_N of described heat exchange controller U1 detects the voltage difference at described electric current inductive reactance R2 two ends, and output it to described microprocessor 330, described microprocessor 330 obtains a current value of corresponding described voltage according to the voltage received from described heat exchange controller U1, and the pre-set current value of described current value with the heat exchange controller U1 be stored in described microprocessor 330 internal storage is compared, if now described current value is less than the pre-set current value of described heat exchange controller U1, then described microprocessor 330 exports a signal and exports a high level signal to described heat exchange controller U1 to make the control pin GATE2 of described heat exchange controller U1, described field effect transistor Q2 conducting, first group of out-put supply of described power supply unit 200 exports to described second source unit 320, there is provided voltage to the electronic component on described motherboard 300 to make it, current status is now shown by described display unit 400 by described microprocessor 330 simultaneously.If now described current value is greater than the pre-set current value of described heat exchange controller U1 and is less than the load current value of described power supply unit 200, then described microprocessor 330 exports a signal and exports a low level signal to described heat exchange controller U1 to make the control pin GATE2 of described heat exchange controller U1, described field effect transistor Q2 cut-off, second group of out-put supply of described power supply unit 200 can not export to described second source unit 320, simultaneously current status is now undertaken showing by described display unit 400 and exports warning marker to remind second group of out-put supply closedown of user's now described power supply unit 200 by described microprocessor 330.Therefore, described power supply unit 200 is when second group of power supply output is greater than the pre-set current value of described heat exchange controller U1 and is less than the load current value of described power supply unit 200, close described second group of power supply by described heat exchange controller U1 to export, prevent described second group of power supply output from exceeding the load current value of described power supply unit 200 with this and cause described power supply unit 200 auto-breaking.
In other embodiments, multiple power-off protection apparatus 100 can be set on described motherboard 300, with other group out-put supplies making it be connected to described power supply unit 200.
Described power supply unit circuit breaking protective system is when described power supply unit 200 has many group out-put supplies; described power supply unit 200 auto-breaking can not be caused when a certain group of out-put supply is closed; and make described motherboard power-off cause loss of data, and the electricity consumption situation of described motherboard 300 can be detected in real time by described display unit 400.
Claims (3)
1. a power supply unit circuit breaking protective system, comprise a power supply unit and a motherboard, described motherboard comprises a power-off protection apparatus, one first power supply unit and a microprocessor, described first power supply unit is for being supplied to the electronic component on described motherboard by the output voltage of described power supply unit, described power-off protection apparatus comprises one first connector, one heat exchange controller, one first electric current inductive reactance and one first electric switch, described first connector is for being electrically connected first group of out-put supply of described power supply unit, the first end of described first electric switch connects the respective pins of described first connector through described first electric current inductive reactance, second end of described first electric switch connects described first power supply unit, first of heat exchange controller described in the three-terminal link of described first electric switch controls pin, first and second induction pin of described heat exchange controller is connected to the two ends of described first electric current inductive reactance, first monitoring pin of described heat exchange controller connects the second end of described first electric switch, the clock pins of described heat exchange controller and data pin are connected to described microprocessor respectively, described microprocessor obtains a current value according to the voltage received from described heat exchange controller and is compared by the pre-set current value of the heat exchange controller of described current value and storage, if described current value is less than described pre-set current value, described microprocessor makes first of described heat exchange controller to control pin and exports a high level signal, described first electric switch conducting, first group of out-put supply of described power supply unit exports to described first power supply unit, if described current value is greater than described pre-set current value and be less than the load current value of described power supply unit, described microprocessor makes first of described heat exchange controller to control pin and exports a low level signal, described first electric switch cut-off, first group of out-put supply of described power supply unit can not export to described first power supply unit.
2. power supply unit circuit breaking protective system as claimed in claim 1, it is characterized in that: described motherboard also comprises a second source unit, described second source unit is for being supplied to the electronic component on described motherboard by the output voltage of described power supply unit, described power-off protection apparatus also comprises one second connector, one second electric current inductive reactance and one second electric switch, described second connector is for being electrically connected second group of out-put supply of described power supply unit, the first end of described second electric switch connects the respective pins of described second connector through described second electric current inductive reactance, second end of described second electric switch connects described second source unit, second of heat exchange controller described in the three-terminal link of described second electric switch controls pin, the 3rd of described heat exchange controller and the 4th induction pin is connected to the two ends of described second electric current inductive reactance, second monitoring pin of described heat exchange controller connects the second end of described second electric switch, described microprocessor obtains a current value according to the voltage received from described heat exchange controller and is compared by the pre-set current value of the heat exchange controller of described current value and storage, if described current value is less than described pre-set current value, described microprocessor makes second of described heat exchange controller to control pin and exports a high level signal, described second electric switch conducting, second group of out-put supply of described power supply unit exports to described second source unit, if described current value is greater than described pre-set current value and be less than the load current value of described power supply unit, described microprocessor makes second of described heat exchange controller to control pin and exports a low level signal, described second electric switch cut-off, second group of out-put supply of described power supply unit can not export to described second source unit.
3. power supply unit circuit breaking protective system as claimed in claim 2; it is characterized in that: first and second electric switch described is N channel field-effect pipe, the first to the 3rd end of first and second electric switch described is respectively the drain electrode of described field effect transistor, source electrode and grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028756.3A CN102622073B (en) | 2011-01-27 | 2011-01-27 | Power supply unit circuit breaking protective system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028756.3A CN102622073B (en) | 2011-01-27 | 2011-01-27 | Power supply unit circuit breaking protective system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102622073A CN102622073A (en) | 2012-08-01 |
| CN102622073B true CN102622073B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110028756.3A Expired - Fee Related CN102622073B (en) | 2011-01-27 | 2011-01-27 | Power supply unit circuit breaking protective system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902006A (en) * | 2012-12-25 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Power-off protection system and method |
| CN109144218B (en) * | 2018-06-19 | 2021-04-13 | 北京海博思创科技股份有限公司 | Power-down protection device and terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5815409A (en) * | 1995-11-30 | 1998-09-29 | Samsung Electronics Co., Ltd. | Control system and method for automatic shutdown of a power supply |
| CN201233569Y (en) * | 2008-06-25 | 2009-05-06 | 深圳市昭营科技有限公司 | Computer having electric power protection mechanism |
| CN201562231U (en) * | 2009-05-15 | 2010-08-25 | 康舒科技股份有限公司 | Power supply unit |
| CN101853063A (en) * | 2010-05-05 | 2010-10-06 | 浪潮电子信息产业股份有限公司 | Method for switching main and standby power supplies |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289407B1 (en) * | 1995-09-27 | 2001-09-11 | Hitachi, Ltd. | Input/output device for connection and disconnection of active lines |
-
2011
- 2011-01-27 CN CN201110028756.3A patent/CN102622073B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5815409A (en) * | 1995-11-30 | 1998-09-29 | Samsung Electronics Co., Ltd. | Control system and method for automatic shutdown of a power supply |
| CN201233569Y (en) * | 2008-06-25 | 2009-05-06 | 深圳市昭营科技有限公司 | Computer having electric power protection mechanism |
| CN201562231U (en) * | 2009-05-15 | 2010-08-25 | 康舒科技股份有限公司 | Power supply unit |
| CN101853063A (en) * | 2010-05-05 | 2010-10-06 | 浪潮电子信息产业股份有限公司 | Method for switching main and standby power supplies |
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| CN102622073A (en) | 2012-08-01 |
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Effective date of registration: 20160126 Address after: 201424 Shanghai city Fengxian District Tuo Village barracks Lin Zhen No. 598 building ninth room 111 Applicant after: Shanghai Lirui Network Technology Co.,Ltd. Address before: 518109 Guangdong province Shenzhen city Longhua District Dragon Road No. 83 wing group building 11 floor Applicant before: SCIENBIZIP CONSULTING (SHEN ZHEN) Co.,Ltd. Effective date of registration: 20160126 Address after: 518109 Guangdong province Shenzhen city Longhua District Dragon Road No. 83 wing group building 11 floor Applicant after: SCIENBIZIP CONSULTING (SHEN ZHEN) Co.,Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Applicant before: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) Co.,Ltd. Applicant before: HON HAI PRECISION INDUSTRY Co.,Ltd. |
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Inventor after: Strong Inventor after: Gao Chengxu Inventor after: Li Li Inventor after: Wang Zhiqiang Inventor after: Sun Xuewen Inventor before: Chen Qunbo |
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Effective date of registration: 20160324 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: State Grid ShanDong Electric Power Co.,Ltd.JiaoZhou Power Supply Company Address before: 201424 Shanghai city Fengxian District Tuo Village barracks Lin Zhen No. 598 building ninth room 111 Applicant before: Shanghai Lirui Network Technology Co.,Ltd. |
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